Hose-clamp.



UNITED STATES PATENT OFFICE.

MILTON P. MOLAUGHLIN, 0F WAKEFIELD, MASSACHUSETTS, AESIGNOR 0F FORTY-FIVE ONE-HUNDREDTHS T0 H. C. MOCARTY, OF WILLIAMBPOlB/T, PENNSYLVANIA.

HOSE-CLAMP.

To all whom it may concern:

Be it known that I, MILTON P. McLAUoH- LLN, of Wakefield1 in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Hose-Clamps, of which the following' is a specification.

This invention relates to a two-part hose clamp for securing a flexible fluid-conducting hose to a coupling member inserted in the end thereof, the clamp surroundingthe end of the hose and binding it tightly against the portion of the .coupling member within the hose` The invention is an improvement on a hose clamp of the type shown in Letters Patent of the United States, 751,329, granted to me February 9,1904, said patent covering a. hose-clamp comprising seg-ments having at one end interlocking members one of Whichis a hook whose recess faces inwardly, the other being a project-ion adapted to enter said recess by an outward movement, said members having permanentcomplemental devices locking against relative axial movement by the fitting together of said members, and means for locking together the opposite ends of said segments.

The invention has reference to the means for locking together' the outer overlapping ends of the segments and has for its object to provide improved means for this purpose adapted to securely connect said ends with freedom of liability ofaccidental disconnection of the same.

The invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanymg drawings which form a part of this specification,-Figure 1 represents an edge view of my improved coupling and a portion of a hose secured thereby to acoupling member. Figs. 2 and 3 represent perspective views of the members of the clamp shown in Fig. 1, said members being disconnected.

Similar reference characters indicate the same or similar parts in all the figures.

In the drawings, 12 and 13 represent the@ segments of a hose clamp, the segment 12 being provided at one end with a hook 14 whose recess faces `inwardly. The corresponding end of the segment 1,3 is formed with a radial projection 15 adapted to enter said recess, the said hook and projection be- Epeceetion of Letters Patent.

Application ined May 5, 1910. serial No, ,1159,529.

I ttented Got. 25, 1910.

ing formed on therespective segments and constituting interlocking members which may be connected and separated by a relative radial and pivotal movement of the segments, the said members acting as a hinge. The members 14 and 15 are also provided respectively with a tooth and with a notch occupied thereby, whereby the axial displacement of t-he sections at this end is pre- .Yented when the members 14- Aand 15 are .ill'flocked The construction; thus far described is practically the same as that set forth in the above-mentioned Ltterslatent.

In carrying out the present invention I provide the segment12 with an extension containing a longitudinal slot 16 which divides the extension into two flexible arms 17 which are providedvvith ratchet teeth 18. on their outer sides. The segmentsfare preferably malleable iron castings,thefarms 17 being fieXible y softhat they. mayi be forced apart, as indicated in Fig.v 1, 'to interlock the ratchet teeth 18 with complemental teeth hereinafter 4described, formedon the segment13, Thefendpprtion 13a of the segment 13, oppositeftheend which has .the projection 15, ispreferably taperedl and formed to bear upon the inner side of the slotted extension of the segment 12, said inner side being recessed to accommodate the reduced end of the segment 13, so that when the segments are applied to a. hose 19 which contains a part of a coupling member 20, the inner surfaces of the segments will form practically a complete circle surrounding and bearing closely on the external surface of the hose.

On the end portion 13L of the segment 13 are formed two outwardly projecting wlngs or flanges 21 which are connecte by a bridge or crossbar 22. These lian es are separated by a space of suiicient width to permit the entrance of the arms 17 between them, said arms being adapted to pass between the end portion 13l and the crossbar 22. On the inner sides of the flanges 21 are formed inwardly projecting teeth or detents 23 adapted to simultaneously enga e two of the ratchet teeth 18, as shown y In applying the clamp to a hose the portions 14 and 15- of the se ments are first interlocked, the form of sai portions bemg such that they establish a pivotal connection tute germes *whenehy eccifental separation' between the segments. The segments are then pressed 'inwardly ai-net the surface. of the hose, 'the @time 17 L 'ing inserted be- I tween the flanges 21 until they bear with the desired pressure u on the hose. Thea arms 17 are then force apart by a suitable tool .inserted lbetween ltheir outer ends, w1- til two of their teeth are brought inte engagement with the teeth "2B, 'h's ift'lloking the two' segments and maintaining t'he't pressure-Venetie The lamas 1f( 'ere linert er nen-resfifiient so 'thi 'retain pesi f tiens im` -atfed to ehem a 'oreeeeerhe It wi ihe tiret the segments 'are -seg eurely infteredreel hy *the si-mpie/eperafti'en of increasing :the Width -o -t-he sldtfted 'e'zcftensiion olf tfhe "Segmeht 1Q, nte'edlig 'being fet *two pointe. p A

The lengt-Th ef the lla'rrges el is preerabigf such 'that they preteet ith'e emitted etges of the arms 17 against cont-act @Jeter-frail i -objets which weul'l fbe Mehl-e te di Iaee "the 5 'arms inwardly gme difsefrgege @them 1 em the i teeth 23. The Menges' 221 4tirerejere i 1. Ahose- "ehmpfeqmprisingeegmems hav-g ing a, pi'vcta nteprleeked 'enga emert femme endmne'se an# negen it-s opposite en prenieii'with depenng e tedtirrg flanges 'andl l@he 'Uosfite enti Uf- #Ehe-' other eegnierrt f-Eerreate exten-5f sion mi d te vlie' between isere 'Hnge-s me; 'be spree fmtoengegement therewith i 'l 2. A-hese 'segments hwprevented.. i

end, one of said segments havin a bifuroatedeltensien at its epposte en y the faees @ifea/id bifureatiens belng serif .and the other segment being rov'ided with an eX- -iamien having de en 1n protecting Hanges to receive said biiireate extension between them.

3. Ahose clamp comprising segments hav- "in-'g 'a pi'vrtai interieeked engagement at one end, one of said segments having a bifur- Cated extension aft iteoppesiteen'd, *the faces -nf lsai-t1 bifurcations @being vserratel amd the; a other feegfment lbeifng prewided with un ex tension havin dep-endif 'protecting iiang'es ite neeeive saif Aibi'furea'te extensien between ith'efm, said tanges having projedvicrns 'On their inner faces t0 engage sai'd serrated Sixties.

1. A'h-ose lamqb enprising `eergrn'ents *havringe pivrftai ifnterrlloeked en agement -at ene (and, ene eff said aeg-ments avi-ng a lbiun 'cate -extensin-fat its opposite enel, the fafees df vSaid biffureaiiions being serrated and the other segment being provided 'an -ex-' tension havin geie' endinf retecftrn Hamee g P g P g g fte receive said b'iflrreate extension between 15h-em, fsaf' 'Hair-ges haivrng 'proiectfie'ns 'en *their initier fae'e's "to engage sal-id serra-ted "faees, anni a cross -bar eenne'eti-ng sai-d1 iienges.

fn v'teS't-i-nfrenjy whereof have afiiXed m3" signature, presence ietf ftwe Witnesses.

MLTON I. MCLUGHL-N.

E R. Rennsrenn, 1. W. Prem. 

